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3 years ago

What is 2/3(6e+9f-21g)

Mathematics

1 answer:

DENIUS [597]3 years ago

7 0

I think the answer is -7f

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5trig review please help me

snow_lady [41]

Answer:

Is A

Step-by-step explanation:

4 0

2 years ago

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the mgf of a random variable x is e^3(e^t-1). Find P[mean - standard deviation squared < X < 1/2( mean + standard deviatio

postnew [5]

The given MGF is that for a random variable following a Poisson distribution with parameter $\lambda=3$ .

This means $\mathbb E(X)=\mathbb V(X)=\lambda$ , and $X$ has PMF

$f_X(x)=\begin{cases}\dfrac{3^xe^{-3}}{x!}&\text{for }x\ge0\\0&\text{otherwise}\end{cases}$

So, the desired probability is

$\mathbb P\left(\lambda-\lambda^2$

This is equivalent to

$\displaystyle\sum_{x=0}^2\mathbb P(X=x)=\sum_{x=0}^2\frac{3^x}{x!e^3}=\frac{17}{2e^3}\approx0.4232$

8 0

3 years ago

Factor 2x+4 (Please and Thanks)

lara31 [8.8K]

2 is common factor
2x=2(x)
4=2(2)

ab+ac=a(b+c)
2(x)+2(2)=2(x+2)

6 0

2 years ago

I need help with this i can’t graph

zaharov [31]

Answer:

(-2,-5), (0,-4), (3,5) (1,1)

Solution:

Only (0,-4) is on the line

(-2,-5), (1,1), and (3,5) is in the orange

(5,5) Isn't right because it's not on the line nor in the orange

4 0

3 years ago

Answer in order thanks

babunello [35]

Answer:

1.c

2.A

3.E

4.B

5.D

Step-by-step explanation:

hope my answer are correct .

3 0

3 years ago

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